Tony,
Ed did not complain. He would not like to miss totally out on the group and is afraid that will happen! Explained that his need was to receive email summary as that is the only way it would be possible for him to enjoy the part possible for him to use. The question was not about the reasoning for some to want the move - but: "Will I be able to receive email summary from this new group - and if so, can someone help me get it set up?"
Just as when you asked for a couple of days, why you were not able to login and get writing in the new group - and asked repeatedly to get help from moderators to be able to write to the group. (Sure easy to sign up - you now write). Other people have other problems, and not everyone has all of your expertise in using all sorts of groups at a professional level.
As a promoter for the move and now a leader in the new group prepare for questions like this - and be happy when they are asked. This group is large and lots of users have used it for years - but have special needs to be able to do so. If questions like this is not met with answers - those users will just be sorry and give up without telling you - and have lost yet another thing in life. Please remember that someone's gain is often happening while others loose out.
We know that quite some users of this group -found ways to keep using Tiddlywiki and this group. And at. some point explained their special needs and why they needed a solution. Poor eyesight or blindness has been one of them.
I would think that promoting the discourse group - why not make it clear - can you use the group directly from receiving emails - emails summary. Can you use the group fully if your only way of being able is using a screen reader?
Others have written earlier about having difficulty with busy screens, moving parts - and lot of colour - lots of changing screens with shifting layouts - and even more I cannot remember now. Explain how to use it for those - if possible.
If people with special needs are not in the target group for the the new group - save time and explain why.
Please think about it - and ask people to explain their problems - and try to find solutions. Use those points in the promotion. Plenty of telling it is beautiful, easy, what some wants etc. I think most have read that by now.
And the questions have to be asked before your wished making this group read only - because afterwards - you will never know.
Who IS in the Target group for the new group? And then list the promoting points - ALL of them. Show that list clearly in both groups.
Please - I did not in anyway want to offend anyone - but we are not all the same.